re added changes to MatFileWriter

 */

public class MatFileWriter

{

	/**

	 * A hack stolen from Greg Wilkins of Mortbay.

	 * A {@link ByteArrayOutputStream} with revealed internals so there is no more wasteful

	 * copying when calling {@link ByteArrayOutputStream#toByteArray()}

	 * @author ss

	 *

	 */

	static class ByteArrayOutputStream2 extends ByteArrayOutputStream

	{

	    public ByteArrayOutputStream2(){super();}

	    public byte[] getBuf(){return buf;}

	    public int getCount(){return count;}

	}

//    private static final Logger logger = Logger.getLogger(MatFileWriter.class);

    /**

            //write data

            for ( MLArray matrix : data )

            {

                //prepare buffer for MATRIX data

                ByteArrayOutputStream baos = new ByteArrayOutputStream();

                DataOutputStream dos = new DataOutputStream( baos );

                //write MATRIX bytes into buffer

                writeMatrix( dos, matrix );

                //compress data to save storage

                Deflater compresser = new Deflater();

                byte[] input = baos.toByteArray();

                ByteArrayOutputStream compressed = new ByteArrayOutputStream();

                ByteArrayOutputStream2 compressed = new ByteArrayOutputStream2();

                DataOutputStream dout = new DataOutputStream(new DeflaterOutputStream(compressed, compresser));

                dout.write(input);

                writeMatrix( dout, matrix );

                dout.flush();

                dout.close();

                compressed.close();

                //write COMPRESSED tag and compressed data into output channel

                byte[] compressedBytes = compressed.toByteArray();

                ByteBuffer buf = ByteBuffer.allocateDirect(2 * 4 /* Int size */ + compressedBytes.length);

                int compressedSize = compressed.getCount();

                ByteBuffer buf = ByteBuffer.allocateDirect(2 * 4 /* Int size */ + compressedSize);

                buf.putInt( MatDataTypes.miCOMPRESSED );

                buf.putInt( compressedBytes.length );

                buf.put( compressedBytes );

                buf.putInt( compressedSize);

                buf.put(compressed.getBuf(), 0, compressedSize);

                buf.flip();

                channel.write( buf );